HEIDENHAIN TNC 430 PA/M - External Interpolation; Encoder Signals

December 2001 Machine Axes 6 – 9
Example:
LS 486C:
Incremental linear encoder with distance-coded reference marks, grating
period 20 µm (= one signal period covers 0.02 mm), nominal increment
between reference marks is 20 mm.
MP331.x = 0.02
MP332.x = 1
MP334.x = =1000 (or 0)
MP331.0-8 Distance for the number of signal periods in MP332
Input: 0.0001 to 99 999.9999 [mm] or [°]
MP332.0-8 Number of signal periods for the distance in MP331
Input: 1 to 16 777 215
MP334.0-8 Nominal increment between two fixed reference marks on
encoders with distance-coded reference marks
Input: 1 to 65 535
0: 1000
External
interpolation
If you connect encoders with TTL signals and an external interpolation unit
through the TTL/1 V
PP
adapter to the control:
7
77
7 In MP340.x, enter the interpolation factor of the external interpolation unit.
MP340.0-8 Interpolation factor for external interpolation
As of software version:280 476-01
Input: 0 to 99
0 = 1: No external interpolation
Encoder signals Position encoders with 1 V
PP
or 11 µA
PP
signals can be connected with the
LE 426 M and LE 430 M. With MP115.0 you select the signal at position
encoder inputs 1 to 10, and with MP115.2 you select the maximum input
frequency at the position encoder inputs 1 to 10.
The incremental track data must be entered for the corresponding position
encoder inputs for encoders with EnDat interfaces.
MP115.0 Position encoder input 1 V
PP
or 11 µA
PP
Format: %xxxxxxxxxx
Input: Bit 0 to bit 5: Position encoder inputs X1 to X6
Bit 6 to bit 9: Position encoder inputs X35 to X38
0: 1 V
PP
1: 11 µA
PP
MP115.1 Reserved
Format: %xxxxxxxxxx
Input: Enter %0000000000
MP115.2 Input frequency of the position encoder inputs
Format: %xxxxxxxxxx
Input: Bit 0 to bit 5: Position encoder inputs X1 to X6
Bit 6 to bit 9: Position encoder inputs X35 to X38
For 1 V
PP
: 0: 50 kHz
1: 350 kHz
For 11 µA
PP
: 0: 50 kHz
1: 150 kHz
20 mm
0.02 mm
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